Central Drying/ Conveying Systems

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1 Central Dryer Series : lb/hr ( Kg/hr) Central Drying/ Conveying Systems Central drying/conveying systems reduce operating costs, increase production, improve product quality and produce excellent payback. You are a good candidate for central drying/conveying If You have dryers on 10 or more machines You have a single material that requires drying and it is required at multiple machines You have frequent material changes on your machines You use more material types than you have machines You have dryer to dryer quality issues when drying the same material You want to expand, but do not have sufficient space 7 High resolution color touch screen standard. A central drying/conveying system helps processors overcome serious issues, often saving hundreds of thousands of dollars per year OverDry Protection Standard Eliminates over-drying of moisturesensitive resins, like nylons. Faster Changeover Times Increases machine uptime and production. Minimizes Labor and Floor Space Removes press-side dryers, hoppers, gaylords and forklifts from the production floor. Easy Access Maintenance All maintenance can be performed from front of dryer. Clear Text Messages No confusing codes that have to be looked up. Intelligent Regeneration Constantly monitors regen inlet and outlet temperatures and controls them to optimize energy and dew point performance. Variable Frequency Drive Dryers from through employ a variable frequency drive that automatically optimizes the regen blower speed. Proven Fast Payback of Investment A plant survey can compare your current costs to estimated costs with a Central System and prove the payback you can expect. Plus Standards that Others Call Options Data trending of processes 7-Day Timer with Auto START/STOP After-cooler w/ plasticizer drain Dew point analyzer High heat capability Phase detection on all portable dryers Reliable chain drive Filter maintenance alarm Alarm light Disconnect switch

2 Press Side vs. Central Drying Processor problems with press side drying Approximately 75 sq. ft. per station is wasted with dryer, hopper and gaylord. Energy lost with dryer and loader at every station. Process variations occur with different dryers reducing quality. Extra labor and equipment to keep machines supplied with material. Every material changeover can cost 2 or more hours of lost production. Inevitable loss of material when changing gaylords or materials. A Central drying/conveying system provides solutions Optimum drying of multiple materials using a central source for dry air. Process stability with central dryer and proper air flow/temperature at each hopper. Increases floor space for more machines and greater production. Reduced energy costs and possibility of energy rebates. Reduced labor and maintenance. Fast material changeover greatly increases process machine uptime. Material selection with automatic identification reduces material waste and rejects. Typical process audit results show huge payback for central drying/conveying Based on 12 machines Average material rate = 200 pph - Drying nylon/abs/pc When we do an energy audit, we find that press side dryers are typically rated for double the throughput for which they are actually being used. That means that processors are using the energy to dry 400 lb./hr. but are only drying 200 lb./hr. Press-Side Cost Central Dry/Convey Cost (per year) (per year) Example: Energy Costs: $.10/kwh x 11 kw x 8000 hr./yr. x 12 (400pph) dryers = $108,000 $41,000 Material changes: Press-side dryers require 30 minutes to 4 or 5 hours for material changeover. Based on 2 hour average x 3 changes/machine/week x $50/hr. = $180,000 $22,500 Labor: Central conveying typically eliminates at least one material handler/12 machines = $ 30,000 $0 $318,000 $63,500 Central Drying/Conveying System Payback = $254,500/yr.! Quick material change greatly increases process machine uptime. Include Auto ID with material selection and reduce spillage and misdirected materials for even greater payback.

3 How Central Drying Works Closed loop conveying system air illustration Dry Air Passes through Vacuum Purge Valve & Coneys Material CLR (Closed Loop Relief Valve) QSM (Material Selection Station) The central dryer is your single source for -40 dew point air. A heater/blower at each hopper provides proper air flow and drying temperature. Dry air conveying or dry air purging of lines is available. Integrated central conveying system with auto ID of materials minimizes waste. Change materials in minutes not hours for increased production time. Closed Loop Air From Vacuum Pump Exhaust Multiple materials - Central drying with closed loop dry air convey Material Lines from Sources DSV (Discharge Selection Valve) Central Dryer Provides Dry Air Purge Valves Heater/Blower at each Hopper Material Lines to Distribution Manifold OverDry protection Monitors hopper outlet temperature and adjusts hopper inlet temperature when hopper is not utilized at full throughput capacity to avoid over-drying of resin

4 Central Drying Assemblies (Material-specific drying hoppers) See CDA2 data sheet for complete CDA specifications The NovaWheel Central Dryer provides -40 dew point air to multiple CDA2 units to custom dry several resins in vary ing quantities. Each CDA2 includes a stand-mounted insulated hopper equipped with an adjustable heater (up to 350 F) and blower unit correctly sized for the hopper. Modular design enables easy installation. MoistureManager Op on for CDA2 Dew Point The source of drying air is changed from the Central Dryer to the return air outlet with the blowers at each hopper -10 to 0 F Dew Point You have the op on of using either return air or process air -40 F Dew Point Dew Point Closed loop manifold provides -40 dew point dry air to hoppers and returns moisture laden air to central dryer. MoistureManager option is often used in conjunction with OverDry protection to maximize drying control. Choices for Central Drying Control 1- Program drying parameters at each central drying hopper control. (Number of dryers and hoppers optional) 2- Add optional control module to 1 central dryer and control up to 16 central drying hoppers from central dryer. 3- Complete access/control of central drying and conveying See FlexXpand with NovaNet data sheet

5 FlexXpand control with NovaNet communications Provides central access to all components of a Novatec central drying, conveying system. Control of up to 4 central dryers, 48 drying hoppers and 160 material receivers on drying hoppers, blenders and process machines. Control up 20 vacuum pumps Access up to 12 silos with ID proofing Auto ID proofing for up to 73 material sources Central drying with central blending and conveying Access up to 2 railcar unloading systems

6 FlexXpand NovaNet touch screen PLC s Provide Full Central/Remote Control and Access These touch screen controls allow you to program and monitor all material loading and can be accessed via web browser by any networked computer, or via VCN app by a networked Smartphone or tablet. See data sheets on controls and material selection for complete specifications. Baltimore, MD USA Fax: BESTDRY ( ) sales@novatec.com NOVATEC, Inc. All rights reserved All information in this bulletin is subject to change without notice. Form # CD 27 JULY